Need A10 Build Help - What's with this small battery bay?

I am just in the beginning phases of my A10 Building project. I am right now looking at this strange (small) battery bay. I'm scratching my head because I have not found any of my packs that will fit in this. Are most of you guys opening this bay up to actually fit a decent battery pack, this bay seems not long enough. What packs are you using in your A10? I swear, I have a rather large assortment of battery packs but I have yet to find one that will fit. I was thinking of moving the pack way forward to get the proper CG but the Nose gear seems to be in the way, what have you done & how far forward should I move the pack??

Mine flys on either a 7 cell AAA 720 mah nimh pack or a 2S2P LIPOLY pack in the cockpit. It will also fit a 6 cell 600 mah AA pack altough your flight times will be short. I scraped the battery door and just lined the outside with Velcro. I then use two velcro straps across the battery opening to hold the AAA in. This will leave your options very open.

I was hopeing to use my 2S2P Qualcomm 830 Parallel pack in this plane, I'm thinking it would be ideal. However, the Lion pack is too long BUT, If I make up (2) seperate 2-cell packs & use a Y-Connector I may be able to stick them in Heighth wise & may just be able to even get the battery door closed, Maybe! Has anybody experimented with the 2S2P Qualcomm 830 setup? How would this combo work with the EDF50's?

Originally posted by AirWarriorBelgy
but then...everyone knows i'm crazy anyway, but the way it flies on 8 cells leaves me wondering what 7 cells will do
Chuck

Chuck,
You will not see a noticable thrust decrease from 8 cells to 7. 7 cells is already pushing these EDF's to their limit. You will see an RPM increase with 8 cells, but not enough Thrust difference to justify using them. Plus it adds the weight of another cell and not enough thrust to make up for it.

I made a pack up to experiment with, if I ever get my A-10. I have no intention of using the supplied battery cover so the size should not be a problem. I'm just concerned about weight, power to get it off the ground, and motor life....

Rick,
6 cells will get it off the ground, but 7 cells would be better IMO. Kan's will be fine as some are using HEcells that carry the same weight I believe. You may need to hog out (pun intended) the battery compartment a little to fit the Kan's, but they will work. Just leave off the battery door and use velcro to give yourself more options.

I used a 7 cell HE1100 pack (2/3A) like this ===I use a dremal with a sanding drum attachment to open up the back side of the compartment, then lined the floor with velcro. Had to move the pack about 1/2 back to get it to balance right, otherwise it would have been nose heavy

I wonder if the increase in thrust (7th cell) is worth the added 3/4oz. of weight? I can't wait to get my bird so I can start playing with this stuff!!! If it is the typical (post Beaver) battery bay, should be able to make most pack sizes fit.

Originally posted by foamflyer Chuck,
You will not see a noticable thrust decrease from 8 cells to 7. 7 cells is already pushing these EDF's to their limit. You will see an RPM increase with 8 cells, but not enough Thrust difference to justify using them. Plus it adds the weight of another cell and not enough thrust to make up for it.

How would (2) 2-cell Qualcomm 830 Lion Packs hooked up in Parallel with a Y-Connector works with the A10? I would align the 4-cell in this fashion (IIII) Straight up & down in the battery bay, should just fit. Anybody tried these Lions? I using this exact setup in my Mustang & seems fine, I assume it will also work in the A10, Do I assume correctly?